A global survey has identified the bacteria, viruses, and archaea that live in the mass transit systems of 60 major cities. Each city has a distinct mix of microorganisms, which its unique climate and...

Remarkably, adult zebra fish can regenerate their hearts after sustaining injury. Scientists recently discovered a critical gene in zebra fish that regulates the regeneration and healing of damaged...

Prostate tumors that contain more of a specific type of cell are more likely to be life-threatening, a new study has found. The research could lead to a test to differentiate between aggressive and harmless...